Ok thought its a diy thing thats why I couldn't find any guides then
You can use plywood or expanded PVC board. Depending on where you install, you'll need to treat and finish the plywood to keep moisture from destroying it. This is where expanded PVC board is nice. But it's expensive. About $150 for a 4*8 sheet.
If you are decent with diy and building they are really quite easy. Cut the board to size, layout all the equipment you want, drill holes where you want to run wires and you're done. Then attach it wherever you plan.
Or you can look into the Adaptive Reef controller boards or controller cabinet on BRS. Super expensive for what you get though.